Method for transmitting data in a discontinuous coverage radio network

Inactive Publication Date: 2007-04-26
ALCATEL LUCENT SAS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0021] By extrapolating the amount of data needed to bridge the time gap, while the end-user is not in a high bit rate zone, and anticipatorily filling the basic cache memory with at least this amount, it is made sure that the end-user will in any case get the demanded multimedia service without any disturbance in spite of

Problems solved by technology

As soon as the terminal is back in a high bit rate zone, full service can be resumed by caching and fu

Method used

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  • Method for transmitting data in a discontinuous coverage radio network
  • Method for transmitting data in a discontinuous coverage radio network
  • Method for transmitting data in a discontinuous coverage radio network

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Example

[0039] The present invention will be described more in detail with reference to the example of an end-user asking for video streaming service in a heterogeneous network with a discontinuous radio coverage, specifically a low bit rate parent network with pico cells as high bit rate zones. It is to be understood, that the present invention ma be applied to transmission of any kind of data in any kind of discontinuous coverage radio network.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0040] In FIG. 1, step 101 the end-user is in a pico cell and asks for video streaming service. Of course, the end user could as well be in a hot spot or any other high bit rate zone. At the beginning of the video streaming service delivery, the end-user is staying in the pico cell, and the multimedia network controlling the delivery sends the video stream separated into a basic flow and a first and second enhancement flow (step 103). Then, the end-user moves near to the pico cell border (step 105). The...

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Abstract

To mash coverage discontinuities, e.g. of high and low bit rate zones, when transmitting especially multimedia data to a terminal (209), it is proposed to store the data of a multimedia data stream's basic flow to a basic cache memory (315) with higher priority than storing the data of at least one enhancement flow of a multimedia data stream to at least one enhancement cache memory (317, 319), at least when said terminal (209) is likely to leave a high bit rate zone. The invention addresses as well a multimedia module (205), a terminal (209) and a computer program product adapted to this handling of multimedia streams.

Description

[0001] The invention is based on a priority application EP 05 292 230.9 which is hereby incorporated by reference. BACKGROUND OF THE INVENTION [0002] The present invention relates to a method for transmitting data in a discontinuous coverage radio network to a terminal, said discontinuous coverage radio network comprising at least one high bit rate zone, and said discontinuous coverage radio network and / or said terminal comprising a cache memory. It further relates to a module for transmitting multimedia data in a discontinuous coverage radio network to a terminal, a terminal for use in a discontinuous coverage radio network for receiving multimedia data, as well as a computer program product for transmitting multimedia data in a discontinuous coverage radio network to a terminal. [0003] In mobile networks, the radio performances are usually not constant. Some kinds of traffic, e.g. real time traffic, have a higher priority compared to other kinds of traffic, for example in case of ...

Claims

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Application Information

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IPC IPC(8): G06F13/28
CPCH04L29/06027H04L49/90H04W28/14H04W28/22H04W88/02H04L65/80H04L65/1101
Inventor NGUYEN, HANGROUFFET, DENIS
Owner ALCATEL LUCENT SAS
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